参数资料
型号: CS4205-KQZ
厂商: Cirrus Logic Inc
文件页数: 27/81页
文件大小: 0K
描述: IC CODEC AC97 I2S 48-LQFP
标准包装: 250
类型: 音频编解码器 '97
数据接口: 串行
分辨率(位): 18,20 b
ADC / DAC 数量: 1 / 2
三角积分调变:
动态范围,标准 ADC / DAC (db): 90 / 90
电压 - 电源,模拟: 4.75 V ~ 5.25 V
电压 - 电源,数字: 4.75 V ~ 5.25 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-TQFP(9x9)
包装: 托盘
产品目录页面: 754 (CN2011-ZH PDF)
其它名称: 598-1182
CS4205
DS489PP4
33
5.10
Record Gain Register (Index 1Ch)
Mute
Record Gain Mute. Setting this bit mutes the input to the L/R ADCs.
GL[3:0]
Left ADC Gain. The GL[3:0] bits control the input gain on the left channel of the analog
source, applied after the input mux and before the ADCs. Each step corresponds to 1.5 dB
gain adjustment, with 0000 = 0 dB. The total range is 0 dB to +22.5 dB gain. See Table 10 for
further details.
GR[3:0]
Right ADC Gain. The GR[3:0] bits control the input gain on the right channel of the analog
source, applied after the input mux and before the ADCs. Each step corresponds to 1.5 dB
gain adjustment, with 0000 = 0 dB. The total range is 0 dB to +22.5 dB gain. See Table 10 for
further details.
Default
8000h. This value corresponds to 0 dB gain and Mute ‘set’.
5.11
Record Gain Mic Register (Index 1Eh)
Mute
Mic Record Gain Mute. When ‘set’, mutes the input to the microphone ADC.
GM[3:0]
Mic ADC gain. The GM[3:0] bits control the input gain on the microphone source. The gain is
applied after the input mux and before the ADC. Each step corresponds to 1.5 dB gain ad-
justment, with 0000 = 0 dB. The total range is 0 dB to +22.5 dB gain. See Table 10 for further
details.
Default
8000h. This value corresponds to 0 dB gain and Mute ‘set’.
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Mute
000
GL3
GL2
GL1
GL0
0000
GR3
GR2
GR1
GR0
Gx3 - Gx0 Gain Level
1111
+22.5 dB
……
0001
+1.5 dB
0000
0 dB
Table 10. Record Gain Values
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Mute
00000000000
GM3
GM2
GM1
GM0
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